CN211626117U - Side-blown smelting furnace - Google Patents
Side-blown smelting furnace Download PDFInfo
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- CN211626117U CN211626117U CN202020001287.0U CN202020001287U CN211626117U CN 211626117 U CN211626117 U CN 211626117U CN 202020001287 U CN202020001287 U CN 202020001287U CN 211626117 U CN211626117 U CN 211626117U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a side-blown smelting furnace, side-blown smelting furnace includes: the furnace body is internally divided into a molten pool area, a gas phase area and a melt clarification tank, wherein the gas phase area is positioned above the molten pool area, and the molten pool area and the melt clarification tank are arranged along the horizontal direction; the flue is arranged above the furnace body, a flue gas discharge port is formed in the flue, the flue is communicated with the gas phase region and the flue gas discharge port, and a valve plate for opening or closing the flue gas discharge port is arranged on the flue gas discharge port; the first side-blowing spray gun is arranged on the furnace body and is communicated with the molten pool area; and the second side-blowing spray gun is arranged on the furnace body and is communicated with the gas phase area. According to the utility model discloses side-blown smelting furnace has the efficiency height, is difficult for producing advantages such as flue gas pollution.
Description
Technical Field
The utility model relates to a metallurgical technology field particularly, relates to a side-blown smelting furnace.
Background
The smelting furnace for treating industrial solid waste in the related technology has high energy consumption and low energy efficiency, and cannot meet the increasing smelting requirement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a side-blown smelting furnace, this side-blown smelting furnace have the efficiency high, be difficult for producing advantages such as flue gas pollution.
In order to achieve the above object, according to the utility model discloses an embodiment provides a side-blown smelting furnace, the side-blown smelting furnace includes: the furnace body is internally divided into a molten pool area, a gas phase area and a melt clarification tank, wherein the gas phase area is positioned above the molten pool area, and the molten pool area and the melt clarification tank are arranged along the horizontal direction; the flue is arranged above the furnace body, a flue gas discharge port is formed in the flue, the flue is communicated with the gas phase region and the flue gas discharge port, and a valve plate for opening or closing the flue gas discharge port is arranged on the flue gas discharge port; the first side-blowing spray gun is arranged on the furnace body and is communicated with the molten pool area; and the second side-blowing spray gun is arranged on the furnace body and is communicated with the gas phase area.
According to the utility model discloses side-blown smelting furnace has the efficiency height, is difficult for producing advantages such as flue gas pollution.
In addition, the side-blown smelting furnace according to the above embodiment of the present invention may also have the following additional technical features:
according to the utility model discloses an embodiment, be equipped with the combustor on the furnace body, the combustor stretches into the gaseous phase district.
According to the utility model discloses an embodiment, be equipped with the charge door on the furnace body, the charge door is located gas phase district top and with gas phase district intercommunication, the charge door on the horizontal direction with the flue is spaced apart.
According to the utility model discloses an embodiment, be equipped with the electrode on the furnace body, the electrode stretches into the fuse-element depositing reservoir.
According to the utility model discloses an embodiment, be equipped with the slag notch and the metal siphon mouth with fuse-element depositing reservoir intercommunication on the furnace body, the slag notch with metal siphon mouth upper shield is equipped with the petticoat pipe.
According to the utility model discloses an embodiment, be equipped with open closed flue burner on the flue.
According to the utility model discloses an embodiment, the flue is the suspension type flue, the furnace body is the spiral spring elastic component, be equipped with the fire prevention inside lining in the furnace body.
According to the utility model discloses an embodiment, be equipped with emergency discharge port on the flue, be equipped with on the emergency discharge port and be used for opening or close the cock of emergency discharge port.
According to the utility model discloses an embodiment, the side-blown smelting furnace still includes the floorbar, the furnace body is established the floorbar top, the floorbar is piled up by refractory material and is formed.
According to the utility model discloses an embodiment, be equipped with cooling jacket on the furnace body, cooling jacket centers on the molten bath district with the setting of fuse-element depositing reservoir.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a side-blown smelting furnace according to an embodiment of the present invention.
Reference numerals: the side-blown smelting furnace 1, a furnace body 100, a molten pool area 110, a gas phase area 120, a charging opening 121, a melt clarifying pool 130, an electrode 131, a slag outlet 132, a metal siphon opening 133, a cooling water jacket 140, a burner 150, a flue 200, a flue gas discharge opening 210, a valve plate 211, a flue combustion opening 220, an emergency discharge opening 230, a first side-blown spray gun 300, a second side-blown spray gun 400 and a bottom beam 500.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A side-blown smelting furnace 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1, a side-blown smelting furnace 1 according to an embodiment of the present invention includes a furnace body 100, a flue 200, a first side-blown lance 300, and a second side-blown lance 400.
The space in the furnace body 100 is divided into a molten bath zone 110, a gas phase zone 120 and a melt clarifier 130, the gas phase zone 120 is located above the molten bath zone 110, and the molten bath zone 110 and the melt clarifier 130 are arranged in a horizontal direction. The flue 200 is arranged above the furnace body 100, a flue gas discharge port 210 is arranged on the flue 200, the flue 200 is connected with the gas phase region 120 and the flue gas discharge port 210, and a valve plate 211 for opening or closing the flue gas discharge port 210 is arranged on the flue gas discharge port 210. The first side-blowing lance 300 is provided on the furnace body 100 and communicates with the molten bath zone 110. The second side-blowing lance 400 is disposed on the furnace body 100 and is in communication with the gas phase zone 120.
Specifically, the first and second side-blowing lances 300 and 400 are provided on the side wall of the furnace body 100. The flue gas discharge port 210 can be connected to the next process, such as a waste heat recovery and flue gas treatment facility.
The side-blown smelting furnace 1 may be used for treating at least one of copper-containing smelting solid waste, lead-containing smelting solid waste, medium-low grade scrap copper, copper-containing electroplating sludge, and electronic waste.
According to the reaction stage and the metal oxidation stage of the smelting process in the furnace, oxygen or compressed air is blown into the furnace body 100 through the first side-blowing lance 300 to promote the metal oxidation process of the material and form smelting melt. In the metal reduction stage, a reducing substance is blown into the furnace body 100 to promote the metal reduction process, so that metal droplets are formed and sink to the bottom of the furnace body 100.
After gas generated by chemical reaction in the smelting pool area 110 and incompletely combusted smoke mixed with organic matter particles enter the gas phase area 120, oxygen or compressed air is blown into the furnace body 100 through the second side-blowing spray gun 400, so that the incompletely combusted organic matter particles are continuously and completely combusted, the gas generated by reaction in the smelting pool area 110 is combusted, heat is released, heat consumption in the smelting process in the furnace is supplemented, and the aims of preventing the volatile organic matter gas and saving fuel are fulfilled.
According to the utility model discloses side-blown smelting furnace 1, blow spray gun 300 and the second side-blown spray gun 400 that switches on with gaseous phase district 120 through the first side that sets up and switch on with molten bath district 110 on furnace body 100, first side is blown spray gun 300 according to smelting reaction process, oxygen or compressed air are blown in stage nature, and reducing substance, in order to promote metal melt to carry out redox chemical reaction, and second side is blown spray gun 400 through blowing oxygen or compressed air, the carbon monoxide that produces organic matter granule or the reduction chemical reaction of not burning completely burns once more, the fuel consumption who is used for maintaining the furnace temperature has been reduced, improve side-blown smelting furnace 1's efficiency, prevent smoke pollution.
Furthermore, since the side-blown smelting furnace 1 has a single-hearth structure, i.e., only one chamber is formed in the furnace body 100, both the smelting reaction and the reduction reaction of the smelting process are performed in the furnace body 100, and the reaction process involving the solid material is mostly performed in the molten bath zone 110 located below the furnace body 100, and the reaction process of the gas generated by the reaction and the related gas is performed in the gas phase zone 120 above the furnace body 100. Therefore, the smooth reaction in the furnace body can be ensured, the structure of the furnace body 100 can be more compact, and the side-blown smelting furnace 1 is more energy-saving and efficient.
In addition, through setting up first side-blown spray gun 300 and second side-blown spray gun 400, can realize the intermittent periodic operation of side-blown smelting furnace 1 through controlling first side-blown spray gun 300 and second side-blown spray gun 400, different reaction atmosphere in the control furnace body 100 still can be with smelting reaction and reduction reaction separately, when guaranteeing that furnace body 100 structure is compacter, can also guarantee that smelting process and reduction process can go on smoothly respectively, make side-blown smelting furnace 1 more energy-conserving high-efficient.
Therefore, according to the utility model discloses side-blown smelting furnace 1 has the efficiency height, is difficult for producing advantages such as flue gas pollution.
A side-blown smelting furnace 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
In some embodiments of the present invention, as shown in fig. 1, a side-blown smelting furnace 1 according to embodiments of the present invention includes a furnace body 100, a flue 200, a first side-blown lance 300, and a second side-blown lance 400.
Advantageously, as shown in FIG. 1, the furnace body 100 is provided with a burner 150, and the burner 150 is extended into the gas phase zone 120. Considering that a large amount of heat is required in the smelting process, when the amount of heat supplied to the materials is insufficient, the smelting and reduction reactions cannot be sufficiently performed, and the efficiency of the smelting and reduction reactions is lowered. By providing the burner 150, the burner 150 can supplement heat to promote the smelting and reduction reactions of the material in the furnace body 100.
Specifically, as shown in fig. 1, a feed port 121 is provided on the furnace body 100, the feed port 121 is located above the gas phase region 120 and is communicated with the gas phase region 120, and the feed port 121 is spaced apart from the flue 200 in the horizontal direction. This allows the raw material to be fed into the furnace body 100 through the feed port 121, and reduces the possibility that the raw material that has not been combusted is directly discharged out of the flue 200.
Specifically, a gas seal device is provided on the outer periphery of the charging port 121. The gas sealing device can improve the sealing performance of the feed inlet 121, thereby effectively preventing the dissipation of smoke.
More specifically, as shown in fig. 1, an electrode 131 is provided on the furnace body 100, and the electrode 131 extends into the melt clarifier 130. Specifically, one end of the electrode 131 is inserted into the melt clarifier 130, and the other end is located outside the furnace body 100, and a plurality of electrodes 131 may be provided at intervals in the horizontal direction. The electrodes 131 also provide supplemental heating of the reaction melt within the melt clarifier 130 to facilitate the smelting and reduction of the reaction mass and to maintain the melt temperature for slag or copper removal operations.
Advantageously, as shown in FIG. 1, the furnace body 100 is provided with a slag outlet 132 and a metal siphon 133 in communication with the melt clarifier 130, and the slag outlet 132 and the metal siphon 133 are covered with a smoke cage. Therefore, the waste and metal can be discharged, the metal siphon port 133 can ensure the reliability of metal discharge on the one hand by utilizing the siphon principle, and on the other hand, the operation of operators can be facilitated, so that the reliability of operation is ensured. And the smoke hood can further reduce the pollution of the smoke exhausted from the furnace body 100 to the environment.
Fig. 1 shows a side-blown smelting furnace 1 according to one specific example of the present invention. As shown in fig. 1, the flue 200 is provided with a flue burner 220 that can be opened and closed. By arranging the flue combustion port 220 on the flue 200 and blowing oxygen or compressed air into the flue 200 by using the flue combustion port 220, organic matters which are not fully combusted in the raw materials and directly enter the flue 200 can be combusted, so that the fuel consumption for maintaining the furnace temperature is saved, the environmental pollution is avoided, and the operation is more stable and reliable.
Specifically, the first side-blowing lance 300, the second side-blowing lance 400, and the flue burner 220 are each provided in plurality and spaced apart from each other in the circumferential direction of the side-blowing melting furnace 1. This makes the injected material more uniform and further improves the energy efficiency of the side-blown smelting furnace 1.
Alternatively, as shown in fig. 1, the flue 200 is a hanging flue, the furnace body 100 is a spiral spring type elastic member, and a fireproof lining is arranged in the furnace body 100. Therefore, the structure of the flue 200 is more reasonable, the furnace body 100 is simpler and more compact, and the stability and the reliability of the furnace body 100 are improved.
Specifically, as shown in fig. 1, an emergency discharge port 230 is provided on the flue 200, and a cock for opening or closing the emergency discharge port 230 is provided on the emergency discharge port 230. Therefore, the on-off of the smelting flue gas can be controlled in an emergency state, and the reliability and the safety of the side-blown smelting furnace 1 are further improved.
More specifically, as shown in fig. 1, the side-blown smelting furnace 1 further includes a bottom beam 500, and the furnace body 100 is disposed above the bottom beam 500, and the bottom beam 500 is built up from pieces of refractory material. This ensures the stability and reliability of the furnace body 100 and also ensures the reliability of the side-blown smelting furnace 1.
Advantageously, as shown in FIG. 1, a cooling jacket 140 is provided on the furnace body 100, the cooling jacket 140 being disposed around the melt pool zone 110 and the melt clarifier 130. The materials are smelted in the furnace body 100 to form a high-temperature melt, and the high-temperature and high-heat melt can damage the furnace body structure to a certain extent. And certain potential safety hazards are formed to operators or the surrounding environment when the high-temperature and high-heat melt is discharged out of the furnace body 100. Through setting up cooling water jacket 140, the high temperature fuse-element that the smelting reaction produced can be cooled through cooling water jacket 140 to slowed down the thermal destruction of high temperature fuse-element to furnace body 100, prolonged furnace body 100's life-span, can reduce the danger that causes operating personnel moreover, improve operating personnel's safety in utilization.
The operation of the side-blown smelting furnace 1 according to an embodiment of the present invention is described below with reference to fig. 1.
1) Mixing the pretreated copper-containing smelting solid waste and a flux according to a certain mixing ratio, and then putting the mixture into a side-blown smelting furnace 1 for oxidation smelting to form a smelting slag layer and a crude copper layer.
2) Reducing agent is added into the smelting slag layer through the first side-blowing spray gun 300 to carry out reduction reaction, so that metal oxidized melt is reduced to obtain crude copper and smelting slag products, and the crude copper and the smelting slag products are discharged through the slag outlet 132 and the metal siphon port 133.
Specifically, in step 1), the pretreated copper-containing smelting solid waste is added into the furnace together with the flux through a feed opening 121 at the top of the furnace body 100, and falls on a slag layer on the surface of the molten pool zone 110. Oxygen or compressed air enters a slag layer of a molten pool through first side-blowing lances 300 on the side walls of both sides of the furnace body 100, and a metallurgical chemical reaction occurs with the charged materials by stirring the slag layer melt. The smelt forms a smelt slag layer and a coarse copper layer in the smelt zone 110 depending on the density of the smelt. When the gas mixture generated by smelting enters the gas phase zone 120, oxygen-enriched air is fed through the second side-blowing lance 400, so that organic matters which are not fully combusted in the raw materials and directly enter flue gas are combusted, and simultaneously, combustible gas carbon monoxide generated by reaction is combusted to release heat, thereby achieving the purposes of avoiding environmental pollution and saving fuel.
In step 2), reducing agent substances are introduced into the furnace through the first side-blowing lance 300 to reduce metal oxides in the molten slag layer, and metal droplets are formed and deposited at the bottom of the molten pool zone 110. Further, in order to ensure the quality of the reduction process, a granular solid reducing agent, such as coke, is added into the furnace, so that a red hot coke filtering layer is formed on the surface of the slag layer to enhance the reduction effect. In the reduction process, the smelting slag generated by the reaction is discharged out of the furnace body through a slag outlet 132 of the melt clarifying tank 130, the reacted crude copper is discharged out of the furnace body through a metal siphon port 133 of the melt clarifying tank 130, and the smoke generated by the reaction is discharged out of the furnace body through a smoke discharge port 210 of the metal siphon port 133.
Therefore, the smelting and the reduction reaction can be separated, the latent heat of the melt is utilized, the method has the characteristics of high efficiency and energy saving, the operation time of the method is short, the heat leakage is less, the fuel consumption is saved, and the operation is safe.
Other constructions and operations of the side-blown smelting furnace 1 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A side-blown smelting furnace, comprising:
the furnace body is internally divided into a molten pool area, a gas phase area and a melt clarification tank, wherein the gas phase area is positioned above the molten pool area, and the molten pool area and the melt clarification tank are arranged along the horizontal direction;
the flue is arranged above the furnace body, a flue gas discharge port is formed in the flue, the flue is communicated with the gas phase region and the flue gas discharge port, and a valve plate for opening or closing the flue gas discharge port is arranged on the flue gas discharge port;
the first side-blowing spray gun is arranged on the furnace body and is communicated with the molten pool area;
and the second side-blowing spray gun is arranged on the furnace body and is communicated with the gas phase area.
2. The side-blown smelting furnace according to claim 1, characterized by burners on the furnace body, which extend into the gas phase zone.
3. The side-blown smelting furnace according to claim 1, wherein a charging opening is provided in the furnace body, the charging opening being located above and in communication with the gas phase zone, the charging opening being horizontally spaced from the flue.
4. The side-blown smelting furnace according to claim 1, characterized by electrodes on the furnace body, which extend into the melt clarifier.
5. The side-blown smelting furnace according to claim 1, wherein the furnace body is provided with a slag outlet and a metal siphon inlet which are communicated with the melt clarification tank, and the slag outlet and the metal siphon inlet are covered with a smoke hood.
6. The side-blown smelting furnace according to claim 1, wherein the flue is provided with a flue burner port that can be opened and closed.
7. The side-blown smelting furnace of claim 1, wherein the flue is a suspended flue, the furnace body is a coil spring type elastic member, and a fireproof lining is arranged in the furnace body.
8. The side-blown smelting furnace according to claim 1, characterized in that an emergency discharge port is provided on the flue, and a tap for opening or closing the emergency discharge port is provided on the emergency discharge port.
9. The side-blown smelting furnace according to claim 1, further comprising a bottom beam, the furnace body being provided above the bottom beam, the bottom beam being built up from pieces of refractory material.
10. The side-blown smelting furnace according to claim 1, wherein a cooling water jacket is provided on the furnace body, the cooling water jacket being provided around the bath zone and the melt clarifier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020001287.0U CN211626117U (en) | 2020-01-03 | 2020-01-03 | Side-blown smelting furnace |
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| CN202020001287.0U CN211626117U (en) | 2020-01-03 | 2020-01-03 | Side-blown smelting furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587664A (en) * | 2021-07-22 | 2021-11-02 | 无锡雪浪环境科技股份有限公司 | Waste recycling environment-friendly metallurgical furnace control method and control system |
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2020
- 2020-01-03 CN CN202020001287.0U patent/CN211626117U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587664A (en) * | 2021-07-22 | 2021-11-02 | 无锡雪浪环境科技股份有限公司 | Waste recycling environment-friendly metallurgical furnace control method and control system |
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